port from perforce

2026-04-18 22:31:51 +02:00
commit 8d0ab5b7cc
8409 changed files with 3972376 additions and 0 deletions
--- a/aiwaz/Aiwaz.Contracts/ICommandUser.cs
+++ b/aiwaz/Aiwaz.Contracts/ICommandUser.cs
@@ -0,0 +1,97 @@
+using System.Collections.Generic;
+using System.Runtime.InteropServices;
+namespace Aiwaz.Contracts
+{
+    public enum CommandFlags : byte
+    {
+	    None = 0x00,
+	    SubChainStart = 0x01,	// Command will start a new command chain (UseShader for example)
+	    SubChainEnd = 0x02,		// Command will end a command chain (Render)
+	    Unique = 0x04,			// Similar commands should not be reduced to one Command
+	    StartChain = 0x08,		// Command will generate a new command chain		
+	    EndChain = 0x10,		// Command will end the command chain (RenderGeometry for example)
+	    FlushChain = 0x20,		// Command will end the command chain (RenderGeometry for example)
+    }
+
+    public class Command
+    {
+        [StructLayout(LayoutKind.Explicit)]
+        public struct CommandInfoUnion
+        {
+            [FieldOffset(0)]
+            public uint RawValue;
+            [FieldOffset(0)]
+            public byte Priority;
+            [FieldOffset(1)]
+            public byte SubPriority;
+            [FieldOffset(2)]
+            public CommandFlags Flags;
+            [FieldOffset(3)]
+            public byte Type;
+        }
+
+        public Command(ICommandUser argOwner, CommandFlags argFlags, byte argType)
+            : this(argOwner, argFlags, argType, 0, 0)
+        {
+        }
+
+        public Command(ICommandUser argOwner, CommandFlags argFlags, byte argType, byte argPriority)
+            : this(argOwner, argFlags, argType, argPriority, 0)
+        {
+        }
+
+        public Command(ICommandUser argOwner, CommandFlags argFlags, byte argType, byte argPriority, byte argSubPriority)
+	    {
+            CommandInfo.RawValue = 0;
+		    Owner = argOwner;
+            Flags = argFlags;
+            Priority = argPriority;
+            SubPriority = argSubPriority;
+            Type = argType;
+        }
+
+
+        public CommandInfoUnion CommandInfo;
+        public byte Priority { get { return CommandInfo.Priority; } set { CommandInfo.Priority = value; } }
+        public byte SubPriority { get { return CommandInfo.SubPriority; } set { CommandInfo.SubPriority = value; } }
+        public CommandFlags Flags { get { return CommandInfo.Flags; } set { CommandInfo.Flags = value; } }
+        public byte Type { get { return CommandInfo.Type; } set { CommandInfo.Type = value; } }
+
+        public ICommandUser Owner;
+    };
+
+    public enum CommandExecuteResult
+    {
+	    None,		// Execution done, proceed to the next Command
+	    RetrySubChain,	// Execution should start from a previous "SubChainStart"-flagged Command
+	    RetrySubChainSkipHead // Equal to the above result but skips the as "SubChainStart"-flagged Command
+    };
+
+    public interface ICommandUser
+    {
+        List<Command> Commands { get; }
+
+	    CommandExecuteResult ExecuteCommand(byte argCommandType, ICommandBuffer argCurrentBuffer, int argCurrentPositon);
+
+	    void AssignToRenderCommandNode(IRenderCommandNode argNode);
+	    void UnassignFromRenderCommandNode(IRenderCommandNode argNode);
+
+	    // Commands should be applied before all following commands
+        bool IsPreconditionForNextCommands { get; set; }
+    };
+
+
+    public interface ICommandBuffer
+    {
+	    void Clear();
+	    void Perform(bool argUseOptimizedList);
+	    void Optimize();
+	    void AddChildCommandBuffer(ICommandBuffer argCommandBuffer);
+	    void RemoveChildCommandBuffer(ICommandBuffer argCommandBuffer);
+
+	    List<Command> BufferedCommands { get; }
+	    List<ICommandBuffer> ChildCommandBuffers { get; }
+	    ICommandBuffer ParentBuffer { get; set; }
+    };
+
+}